I'm reluctantly running a pirated version of Windows and can't get caught no matter how hard I try. A few weeks ago, I spoke to some of the folks on the WGA team and asked them to send me a pirated version of Windows XP. According to Microsoft, 80 percent of the 60 million people who have been nabbed by the WGA validation tool are running versions of Windows with stolen or pirated volume license keys. These versions of Windows are supposed to be available only to corporate customers and only as upgrades. Unlike retail versions, they don?t require activation, which makes them an ideal target of pirates and bootleggers.

ZDnet